Advertenties
Beschikbare talen
Beschikbare talen
-
A flashing light level shows that the voltage of the LED
stage is not been machined (except 12/24 V LED). An LED
step lights from 75 - 85 % of the scale value.
-
Alternating voltages (AC) are indicated by the + 12 V LED
and the - 12 V LED lighting up simultaneously.
-
Direct voltages (DC) are indicated by the + 12 V LED
or the - 12 V LED lighting up. The polarity indication
shows the polarity (+ or -) applied to the probe tip L2/+
- To differentiate between low-energy and high-energy volt-
ages (e.g. capacitively induced interference voltages), an
internal load in the voltage tester can be connected by ac-
tuating both push-buttons (see section 5).
Overload indication
If the voltage applied to the probe tips L1/-
is higher than the admissible nominal voltage, all LEDs of
the step indicator
1,100 V AC/DC on.
5.
Load connection with vibration alert (figure B/C)
Both handles L1
6
. Here, voltage is applied to a vibration motor (motor with
unbalanced mass) in the display handle L2
From approx. 200 V on, this motor is set in rotary motion.
With the voltage increasing, the motor's speed and vibration
increases as well. The duration of the test with a lower inter-
nal resistance (load test) depends on the level of voltage to
be measured. In order to avoid an inadmissible warming of
the device, it is provided with a thermal protection (controlled
reduction). With this controlled reduction, the speed of the vi-
bration motor is reduced and the internal resistance increases.
The load connection (with both push-buttons being actuated)
can be used ...
-
to suppress reactive voltages (inductive and capacitive
voltages),
-
to charge capacitors,
- to trip 10/30 mA FI safety switches. The tripping of the FI
safety switch is done by testing the external conductor
(phase) to PE (earth). (figure D)
6.
External conductor test (phase) (figure D)
- Fully grasp the handles L1
sure a capacitive coupling to earth.
- Apply the probe tip L2/+
During the single-pole external conductor test (phase),
make absolutely sure not to touch the probe tip L1/-
and that it remains contactless.
-
If the red LED
conductor (phase) of an AC voltage is applied to this sys-
tem part.
Note:
The single-pole external conductor test (phase) can be carried
out in an earthed mains from 230 V, 50/60 Hz (phase to earth)
on. Protective clothing and insulating conditions on site might
impair the function.
Attention!
The absence of voltage can only be determined by means of
a two-pole test.
7.
Phase sequence test (figure F/G)
- Fully grasp both handles L1
sure a capacitive coupling to earth.
- Apply the probe tips L1/-
conductors (phases) and check whether the external con-
ductor voltage of e.g. 400 V is applied.
-
A clockwise phase sequence (phase L1 before phase L2)
is given, if the green LED ► of the phase sequence indica-
L
tion
-
A counter-clockwise phase sequence (phase L2 before
phase L1) is given, if the green LED ◄ of the phase se-
quence indication
- The phase sequence test always requires a countercheck
with the probe tips L1/-
ing which the phase sequence must change.
Note:
The phase sequence test can be carried out in an earthed
three-phase mains from 230 V, 50/60 Hz (phase to phase) on.
Protective clothing and insulating conditions on site might im-
pair the function.
8.
Continuity test (figure H)
- The continuity test must be carried out on system parts
which are free of voltage. If necessary, capacitors have to
be discharged.
- Apply the two probe tips L1/-
parts to be tested.
- In case of continuity (R < 100 kΩ), an acoustic signal is
emitted and the yellow LED Ω
-
This function also can be used to determine the conducting
and non-conducting direction of semiconductor components.
-
If a voltage is applied to the test point, the voltage tester
automatically switches over to the voltage test function
and indicates this function.
9.
Cable break detector (figure I)
-
The cable break detector is intended for the non-contact
localization of cable breaks on exposed live lines.
-
Fully grasp the display handle L2
over a live line (e.g. a cable reel or a chain of lights) from the
feeding point (phase) in direction of the other end of the line.
- As long as the line is not interrupted, the yellow LED Ω
for continuity is flashing.
-
The point of the cable break has been localized as soon as
the yellow LED Ω
Note:
The cable break detector may grounded power from 230 V,
50/60 Hz (phase to earth) are used. Insulating protective cloth-
ing and site conditions can affect the function.
03/2013
9
are flashing. Overload is indicated from
7
and L2
K
lights up.
L
M
DUSPOL
8
are equipped with push-buttons
7
and L2
3
to the system part to be tested.
lights up on the display, the external
7
and L2
2
and L2/+
lights up.
2
and L2/+
2
and L2/+
M
8
goes out.
expert 1000
®
2
and L2/+
8
.
8
, in order to en-
8
, in order to en-
3
to two external
3
being inverted dur-
3
to the system
for continuity lights up.
and pass the detector
J
3
.
3
2
5
M
7
Advertenties
Hoofdstukken
